I should be good for five bucks a piece.为什么a piece这里指每个人

I should be good for five bucks a piece.为什么a piece这里指每个人 I should be good for about 5 bucks a piece什么意斯? I'd like to add that a good robot should be r---- to work for us 24 hours The music will be good for ()(I) how to be a good teacherwhat should i do I think a businessman should be good-looking. I think evey one should be in good health 同义 be good for,be good at,be good to.Going to bed early at night _____ our health.Most of the students _____ English.I think you should ______ that old woman. the next day,I should be away again,and for me,it's hard to say good bey~谁给我翻译一下? i think a good...i think a good friend should be all his or her subjects.(要说明理由!）i don't think so .i don't think grades are important ina friendship.A good at B angry with C famous for D good for It is not good to be I() for school. I'll be here for good this time. I think it will be a good idea for us The Man I Love (Written For Lady, Be Good) 歌词 The music will be good for( ).(I,me) i think a good friend should be t__ in music 英语i think a good friend should be t__ in music be good for 造句 be good for 造句